Respiratory effects of different recruitment maneuvers in acute respiratory distress syndrome

Table 1 Clinical and respiratory characteristics of the patients at the study entry

RM order^a	Age, years	Gender	Height, cm	PBW, kg	Cause of ARDS	SAPS II	Delay, hours	V_T, mL	RR, rpm	LIP, cm H₂O	UIP, cm H₂O	Loss of lung aeration^b	Outcome^c
A	59	Male	185	90	Sepsis	48	12	480	25	12	35	Focal	D
A	63	Male	175	70	Aspiration	62	12	490	22	13	44	Focal	S
B	78	Male	178	85	Pneumonia	51	24	440	24	12	-	Focal	S
A	74	Male	180	90	Abdominal sepsis	78	24	450	20	13	-	Focal	D
B	38	Male	182	80	Pneumonia	24	12	470	22	9	45	Diffuse	S
B	68	Male	170	72	Pneumonia	80	24	400	24	12	42	Diffuse	D
A	38	Male	188	85	Aspiration	60	12	500	25	12	-	Diffuse	D
B	49	Male	180	80	Pneumonia	33	24	450	21	12	48	Patchy	S
B	28	Male	195	75	Polytrauma	40	24	533	27	12	49	Diffuse	S
A	63	Male	180	82	Aspiration	78	12	450	20	9	46	Diffuse	S
B	57	Male	175	78	Aspiration	22	12	430	20	13	-	Diffuse	S
A	75	Female	163	52	Abdominal sepsis	76	48	340	18	15	40	Diffuse	D
A	76	Male	180	88	Pneumonia	68	48	450	20	7	40	Diffuse	S
B	80	Female	160	48	Pneumonia	58	12	310	26	13	40	Diffuse	D
A	58	Male	185	90	Pneumonia	38	72	480	27	9	39	Patchy	S
B	71	Male	178	80	Abdominal sepsis	55	48	440	21	8	-	Focal	S
B	52	Male	180	80	Sepsis	48	24	450	20	7	36	Diffuse	S
A	54	Male	175	85	Abdominal sepsis	38	36	430	22	15	-	Focal	S
A	43	Male	185	95	Pneumonia	12	24	480	25	9	34	Diffuse	S

^aOrder of application of the two recruitment maneuvers: A for extended Sigh, B for continuous positive airway pressure.
^bDiffuse, diffuse loss of aeration; Focal, focal loss of aeration; Patchy, patchy loss of aeration.
^cD, deceased; S, survived.
ARDS, acute respiratory distress syndrome; Aspiration, aspiration pneumonia; Delay, delay between the diagnosis of acute respiratory distress syndrome and inclusion in the study; LIP, lower inflection point on the pressure-volume curve; PBW, predicted body weight; rpm, respirations per minute; RR, respiratory rate; SAPS, simplified acute physiologic score (evaluated at the beginning of the study); UIP, upper inflection point on the pressure-volume curve; V_T, tidal volume.

ISSN: 1364-8535